Fumigant vaporizing and delivery apparatus

Abstract

A fumigant vaporising and delivery apparatus for vaporising one or more constituents of a fumigant, the apparatus including: a fluid supply; a pump connected to the fluid supply for drawing fluid at an ambient temperature therefrom; a heater operably connectable to a portable energy source, the heater connected to the pump for receiving and heating a flow of incoming fluid from the pump; a heat exchanger connected to and downstream from the heater adapted to receive an inflow of fluid at an elevated temperature from the heater, the heat exchanger having: a fluid pathway for fluid flow between the heater and the fluid supply; and a fumigant pathway separate from the fluid pathway, extending between an inlet and an outlet in the heat exchanger for flow of a liquid fumigant therebetween; wherein the liquid fumigant vaporises as it flows within the fumigant pathway between the inlet and the outlet with exposure to heat from the fluid pathway, and spent fluid is received by the fluid supply for substantially continuous operation; wherein the fumigant exits the outlet of the heat exchanger in a vaporised state at a predetermined fumigant flow rate in a substantially sustained delivery stream for effective fumigant use.

Dependencies are inferred from the claim text.